The Patriot 36oz Stainless Steel Bottle is constructed with features such as copper lining and double wall vacuum insulation. The result is your favorite drink staying ice cold for hours. The sweat-free design assures that while your drink is cold, your hands are dry. In honor of our USA flag, Patriot is designed with 13 stripes in the grip and a 50 star footprint. 20% of NET proceeds are donated to the non-profit organization Homes For Our Troops.